baber/WOPTO huggingface dataset:
Patent CA-1180345-A (CA)
Inventor: PILAT HOWARD L
IPC: C07C69/54
Filed: 1982-06-24
Granted: 1985-01-02
Abstract: Abstract of the Disclosure Unreacted ethylene contained in a gaseous light ends stream derived from a process for the production of ethyl acrylate by the reaction of ethylene with acrylic acid in the presence of a sulfuric acid catalyst, is recovered by intimately contacting, under controlled conditions of temperature and pressure, the light ends stream with the liquid sulfuric acid catalyst make-up stream which is passed to the ethyl acrylate process.  Upon contact of the light ends stream with the sulfuric acid make-up stream, the ethylene reacts with sulfuric acid to form ethyl hydrogen sulfate and diethyl sulfate, both of which remain in solution in the sul-furic acid which is then passed to the ethyl acrylate process as a source of make-up sulfuric acid.  Sulfur dioxide contained in the vent-gas stream is not absorbed into the sulfuric acid, and therefore not recycled to the ethyl acrylate process.
Patent CA-1187824-A (CA)
Inventor: PUEHLER ALFRED
IPC: C12N15/00
Filed: 1982-07-16
Granted: 1985-05-28
Abstract: Abstract of the disclosure:     The plasmid p SVH 1, which is obtained from Streptomyces venezuelae DSM 40755and which has a molecular weight of 8.4 megadaltons, a contour length of 4.1 µm and a molecular size of 12.6 kilobases, and its use for the construction of a vector and for cloning foreign DNA in suitable host organisms.
Patent CA-1203267-A (CA)
Inventor: SAIGO TAKESHI
IPC: E21B17/042
Filed: 1982-09-02
Granted: 1986-04-15
Abstract: ABSTRACT OF THE DISCLOSURE     A screw coupling joint has a sealing portion between an outer circumference formed in convex in an axial direction at an end of a male screw and an inner circumference formed in taper at an inner part of a female screw, and is structured by contacting the end of the male screw to an end of a stopper positioned at an inner part of the female screw, wherein the taper is specified 1 to 3°, and an inner diameter D1 of the female screw and an outer diameter D2 of the male screw have relation of D2 > D1 at a tangent point therebetween, and the end of the male screw and the end of the stopper are formed vertically.
Patent CA-1190948-A (CA)
Inventor: CASTRO-HAHN VICTOR
IPC: G03G15/00
Filed: 1982-09-22
Granted: 1985-07-23
Abstract: ABSTRACT OF THE DISCLOSURE In a document transport 10 for transporting an original document sheet 14 over the imaging station 18 of a copier 12 there is disclosed a single integrally movable roller unit II solely engaging and driving a document sheet over the platen from an initial position 24 upstream of the imaging station to adocument ejection position 32 downstream thereof with driving means 35 both rotating end translating the roller unit relative to the platen to translate theroller unit II and A document sheet held and transported thereunder over and through the imaging station without imaging the roller unit or rubbing the platen glass in the imaging area. The disclosed roller unit II reciprocates a distance 33 from and back to the initial position 24 with pinion gears 28 on theroller shaft 30 engaging racks 26 to control the combined rotational and translational movement of the transport wheels 25 in the transporting move-ment direction. Clutch release of the rollers may be provided in the return movement.
Patent CA-1187509-A (CA)
Inventor: GRETH ERICH
IPC: C07C69/72
Filed: 1982-09-29
Granted: 1985-05-21
Abstract: ABSTRACT OF THE DISCLOSURE           Process for the production of 4-alkoxyacetoacetic acid esters from 4-chloro- or 4-bromoacetoacetic esters.  The 4-chloro- or 4-bromoacetoacetic ester is reacted with a highly concentrated solution of an alkali alcoholate in alcohol having been concentrated at elevated temperatures, at temperatures of 50° to 120°C. At least 2.8 mole of the alkali alcoholate are used per mole of 4-chloro- or 4-bromo-acetoacetic ester.
Patent CA-1222751-A (CA)
Inventor: GASS KARL
IPC: C07D239/52
Filed: 1983-01-21
Granted: 1987-06-09
Abstract: Case 5-13774/-N-Phenylsulfonyl-NI-pyrimidinyl- and -N'-triazinylureas Abstract N-Phenylsulfonyl-N'-pyrimidinylureas and -N'-triazinylureas of the general formula   and the salts of these compounds with amines, alkali metal bases and alkaline earth metal bases or with quaternary ammonium bases, have good selective herbicidal and plant growth regulating properties when applied pre- and postemergence.            In the formula R1 is hydrogen, halogen, nitro, C1-C4haloalkyl, C1-C4alkyl, C1-C4alkoxy, C2-C5alkenyl or C1-C4alkoxycarbonyl, R2 is C1-C3alkyl or C1-C3alkoxy, each unsubstituted or substituted by 1 to 3 halogen atoms, R3 is halogen, hydrogen, -NR4R5, C1-C3alkyl, unsubstituted or substituted by 1 to 3 halogen atoms or C1-C4alkoxy, or is C1-C3alkoxy, unsubstituted or substituted by methoxy, ethoxy, or 1 to 3 halogen atoms, R4 is hydrogen or methyl, R5 is hydrogen, C1-C2alkyl or methoxy, A  is C1-C4alkylene or C2-C4alkenylene, each unsubstituted or substituted by C1-C4alkyl, m  is O or 1, E  is nitrogen or the methine group, X  is oxygen, sulfur, -SO- or -SO2-, and Q  is hydroxyl, cyano or radicals selected from the group consisting of 5- or 6-membered heterocyclic rings and fused homologues, amines, acetals, esters, ketones, phenyls, sulfonic acid and carboxylic acids, which radicals may be further substituted and have functional structures.
Patent CA-1173842-A (CA)
Inventor: SCHULZ BERNHARD
IPC: C07D311/72
Filed: 1983-02-02
Granted: 1984-09-04
Abstract: PREPARATION OF TOCOPHERYL ACETATE    AND TOCOPHERYL PROPIONATE                  Abstract of the Disclosure Tocopheryl acetate or tocopheryl propionate is prepared by a process in which trimethylhydroquinone is reacted with phytol or isophytol in the presence of a proton donor and zinc chloride and of a liquid hydrocarbon as the solvent, the tocopherol obtained is then esterified, and the esterification mixture is worked up in a conventional manner to give tocopheryl acetate or tocopheryl propionate, wherein the mixture obtained in the reaction of trimethylhydroquinone with phytol or isophytol is cooled to room temperature, acetic anhydride or propionic anhydride is added and the resulting mixture is heated to 20-60°C or allowed to warm up to this temperature.
Patent CA-1202807-A (CA)
Inventor: GROSSE-SCHARMANN FRANZ
IPC: A01B33/08
Filed: 1983-02-16
Granted: 1986-04-08
Abstract: ABSTRACT         A soil-cultivating machine comprising a frame upon which are arranged, side by side, in a row extending at right angles to the direction of travel of the machine, tool-rotors adapted to rotate about an upwardly-directed axis and driven by a divided horizontal drive-shaft united by means of coup-lings.  The parts of the drive-shaft are components of the angle-drives which drive the tool-rotors.  The horizontal drive-shaft is driven through a main gearbox arranged upon the frame in such a manner as to be in operative connection, through a coupling device located within the main gearbox, with the output-gearwheel thereof.  In order to provide, in a simple manner, a wear-resistant and reliable drive, from the main gearbox to the tool-rotors, guide-elements are located between the main gearbox and the drives, immediately adjacent the main gearbox, for the tool-rotors.  The guide-elements serve to centre the axes of the drive-shaft parts with the centreline of the output-gearwheel of the main gearbox.  The coupling device comprises a coupling part secured firmly to each of the two drive-shaft parts projecting into the main gearbox.  The coupling elements thereof engage, within the bearings of the output-gearwheel in the main gearbox, with a certain amount of play, with the coupling elements located upon the output-gearwheel.
Patent CA-1192206-A (CA)
Inventor: REGENASS FRANZ
IPC: C09K15/30
Filed: 1983-02-24
Granted: 1985-08-20
Abstract: Abstract Mixtures of the compounds of the formulae I and II                     (I)                    (II) are metal passivators for functional fluids, such as hydraulic fluids and metal-working fluids in the form of aqueous polyglycol/polyglycol ether mixtures, glycol systems, oil-in-water and water-in-oil emulsions, as well as anti-freeze compositions based on glycol.   A process for producing mixtures of the said type is also described.
Patent CA-1189217-A (CA)
Inventor: LINDNER CHRISTIAN
IPC: C08L69/00
Filed: 1983-03-18
Granted: 1985-06-18
Abstract: Polycarbonate Mixtures .                   A b s t r a c t The present invention relates to mixtures com-prising (a) thermoplastic aromatic polycarbonates having Mw (weight average molecular weight) of 10,000 to 200,000, preferably 20,000 to 80,000 (determined by measuring the relative viscosity ? rel in CH2CL2 at 25°C and a concentration of 0,5 g per 100 ml CH2CL2 (b) thermoplastic polymers of C1-C4-alkyl methacry-lates having Mw (weight average molecular weight) of 10,000 to 1,000,000 (measured in dimethylformamide at 25°C) and (c) particulate graft polymers of methyl methacrylate onto a particulate, highly crosslinked alkyl acrylate-rubber which can optionally also contain a crosslinked diene rubber as an inner core , as well as to thermo-plastic moulding compositions based on thermoplastic ABS resins or thermoplastic SAN resins which contain the three-component mixture (a)+(b)+(c).
Patent CA-1204613-A (CA)
Inventor: WELDON SCOTT B
IPC: D21F11/00
Filed: 1983-04-08
Granted: 1986-05-20
Abstract: ABSTRACT OF THE DISCLOSURE      A  system  of  treating  web  material  wherein  the web is transported within a differential relative velocity nip defined by a web  support  surface and a pick-up member having voids therein and having a relative velocity differing from that of the  support surface  at  the  nip  location.   Substantially simultaneously with the web treatment the web is applied to the pick-up member with the web impressed into the voids to lock the web against movement relative to the pick-up member.
Patent CA-1196879-A (CA)
Inventor: DERR WALTER R
IPC: C10G65/12
Filed: 1983-04-29
Granted: 1985-11-19
Abstract: HYDROCRACKING PROCESS     Abstract:          A hydrocracking process with improved distillate selectivity is operated at limited conversion without liquid/gas separation between the denitrogenation and hydrocracking catalyst beds and without liquid recycle.  Conversion is held to a maximum of 50 volume percent to lower boiling products, and relatively mild conditions, especially of pressure, may be employed.
Patent CA-1246609-A (CA)
Title: Process for producing 1-hydroxy ketones
Inventor: STEGMANN WERNER
IPC: B01J31/00
Filed: 1983-05-05
Granted: 1988-12-13
Abstract: A process for producing 1-hydroxy ketones Abstract The invention relates to a novel process for producing compounds of the formula I                    (I) in which R1 is for example phenyl, and R2 and R3 are for example cyclohexyl.  With application of the phase-transfer catalysis method, a corresponding compound of the formula II            (II) is reacted, in the presence of water, with hydroxide ions, especially with alkali metal hydroxide or alkaline-earth metal hydroxide.
Patent CA-1259619-A (CA)
Inventor: KLAUS MICHAEL
IPC: C07D335/06
Filed: 1983-05-06
Granted: 1989-09-19
Abstract: ABSTRACT      Heterocyclic compounds of the formula                 I in which X signifies -O-, -S-, =SO, =SO2 or =NR2;  R1 signifies methyl, -CH(R3)OR4 or -C(O)R5;  R2 signifies hydrogen or lower-alkyl;  R3 signifies hydrogen or methyl;  R4 signifies hydrogen, lower-alkyl or alkanoyl;  R5 signifies hydrogen, lower-alkyl, amino, lower-alkylamino, di(lower-alkyl)-amino or OR6;  and R6 signifies hydrogen or lower-alkyl; and salts of these compounds are active topically and systemically against neoplasms and dermatoses.
Patent CA-1205212-A (CA)
Inventor: GRADY JOHN K
IPC: A61B6/02
Filed: 1983-05-06
Granted: 1986-05-27
Abstract: ABSTRACT X-ray apparatus is shown in which there are two radiological sets, each set including an X-ray tube and radiation receptor (e.g., film holder or image intensifier) and an arrangement for supporting them on a radiation axis.   The two radiation axes of the respective radiological sets intersect at an isocenter at which the subject of examination, e.g., the human heart, may be located. The two sets are independently rotatable on a rotation axis through the isocenter and perpendicular to the radiation axes.  One or both of the sets may be retracted from alignment with the isocenter parallel to the axis of rotation without disturbing the patient to allow unobstructed access and the X-ray tube and receptor of each set are movable parallel to the rotational independently of each other so that the associated radiation axis can be skewed but still pass through the isocenter.
Patent CA-1203988-A (CA)
Inventor: MIURA HIROHISA
IPC: C22B5/16
Filed: 1983-05-09
Granted: 1986-05-06
Abstract: METHOD AND APPARATUS FOR RETRIEVING METALLIC VAPOR IN THE LIQUID PHASE USING POOL OF MOLTEN RETRIEVING METAL          ABSTRACT OF THE DISCLOSURE   A mixture gas containing metallic vapor with oxidizing gas produced by reducing of the oxide of the metal at high temperature is led, at a high enough temperature and a low enough pressure for the reverse oxidization reaction between them to not substantially take place, into a convergent-divergent nozzle, and squirts out from the nozzle, as cooled down rapidly by adiabatic expansion in the nozzle to a low enough temperature for the oxidization reaction between them to not substantially take place, to be led to the surface of a pool of molten retrieving metal, either directly or via deceleration. The retrieving pool metal may be the same kind as the metallie vapor to be retrieved, or may be different. When the metallic vapor to be retrieved is magnesium vapor, the retrieving metal of the different kind may be lead, bismuth, tin, antimony, or a mixture thereof.
Patent CA-1198175-A (CA)
Inventor: TIHANYI GEORGE
IPC: B23K9/22
Filed: 1983-06-22
Granted: 1985-12-17
Abstract: ARC PERCUSSION WELDING A PLATED PIN TO A THIN TAB OF DISSIMILAR METAL          Abstract of the Disclosure To obtain acceptable arc percussion welding of tin plated copper pins to thin brass strip members, the tin must be prevented from becoming trapped in the weld zone and gaseous and other forms of material also being trapped.  By giving the end of a pin a smooth, hemispherical profile, the plasma arc is initiated at the center of the pin end and progressively moves radially outwards.          This melts the tin plate layer and the tin is caused to flow radially outwards from the weld zone.  The copper of the pin and brass of the strip then melt slightly and on impact welding is achieved.  The outward flow of tin also assists in causing other undesirable elements being removed from the weld zone.     - i -
Patent CA-1207606-A (CA)
Inventor: BOWERS CECIL W
IPC: G01M3/00
Filed: 1983-07-13
Granted: 1986-07-15
Abstract: Abstract of the Disclosure A novel filter testing apparatus and method are provided wherein a challenge aerosol or the like is introduced upstream of the filter, and the downstream face of the filter is scanned with an air sampling probe to detect for the presence of leaking aerosol.  The novel apparatus comprises a generally rectangular frame, and an air sampling probe which is mounted to the frame so as to be movable in a predetermined pattern wherein the entire face of an ad-jacent filter is scanned.  The assembly may be removably mounted in a filter housing immediately downstream of the filter, or mounted on a framework down-stream of a bank of several filters.  In the latter instance, means are provided for sequentially indexing the assembly to a position alignment with each filter, and an upstream aerosol dispersion assembly is also provided which is cor-respondingly indexed across the filter bank.  Means are also provided for con-tinuously plotting the rate of leaking challenge aerosol on a moving sheet of paper, to thereby permit the magnitude of a leak and its location on the face of the filter to be readily determined.  Means and method are provided for applying a visible dye onto the face of the filter upon the rate of leaking challenge material exceeding a predetermined minimum, the dye being applied closely adjacent the leak to identify its location.
Patent CA-1208697-A (CA)
Inventor: WILLIAMS ROBERT A
IPC: F16F3/04
Filed: 1983-08-30
Granted: 1986-07-29
Abstract: Abstract of the Disclosure A first coiled spring has its two ends coupled together to form an annular coiled spring.  The two ends of the first coiled spring are coupled together by a second coiled spring located within the first coiled spring.  One end of the second coiled spring is connected to one end of the first coiled spring and the other end of the second coiled spring is connected to the other end of the first coiled spring. loop is formed at each end of the first coiled spring.  The ends of the second coiled spring are connected to the two loops of the first coiled spring respectively, and the loops are offset from each other such that one loop fits into one end of the first coiled spring and the other loop fits into the other end of the first coiled spring.
Patent CA-1204272-A (CA)
Title: Preparative process for alkaline earth metal, aluminum-containing spinels
Inventor: MOOI JOHN
IPC: B01J23/02
Filed: 1983-08-30
Granted: 1986-05-13
Abstract: ABSTRACT OF THE DISCLOSURE       An improved process for the production of alkaline earth, aluminum-containing spinel compositions, preferably magnesium, aluminum-containing spinel compositions and preferably further comprising at least one additional metal component, comprises combining alkaline earth metal  and aluminum components  at selected pH conditions to form a precipitate and calcining the precipitate to form a spinel composition.  The product spinel composition,   preferably  with  included  additional  metal components, is particularly suited for use to reduce the amount of sulfur oxides emitted from a catalyst regeneration zone, e.g., a catalytic cracking unit regeneration zone.
Patent CA-1200210-A (CA)
Inventor: EDWARDS WILLIAM J
IPC: B01D46/26
Filed: 1983-09-26
Granted: 1986-02-04
Abstract: ABSTRACT OF THE DISCLOSURE     A filter cartridge for filtering fluid, such as air, within an enclosed housing, such as a disk drive, comprises a toroidal body having a pair of mating confronting halves fastened together.  A pair of annular sheets of filter media are sandwiched between the halves and are separated by a ring member to engage each sheet of filter material against a respective one of the confronting halves.  Fluid to be filtered flows radially through the cartridge to flow through at least two portions of the filter media.  Optionally, a third sheet of filter material may be supported by the ring member to provide additional filtering.
Patent CA-1201555-A (CA)
Inventor: FRY FRANK R
IPC: C08L95/00
Filed: 1983-10-06
Granted: 1986-03-11
Abstract: IMPROVED ASPHALT COMPOSITIONS               Abstract of the Disclosure Paving mixtures are disclosed comprised of paving grade asphalt containing about 4 to 10% by weight of a fibrous filler and 2.5 to 15% by weight of a mixture of eighteen carbon fatty acids containing up to about 30% by weight of rosin.
Patent CA-1201756-A (CA)
Inventor: DE VRIJER BERTUS
IPC: H01J61/073
Filed: 1983-12-01
Granted: 1986-03-11
Abstract: ABSTRACT: "Gas discharge lamp".     A gas discharge lamp according to the invention has an at least approximately rectilinear and contracted arc and a high efficiency even in a horizontal operating position. Consequently, the lamp is suitable for use, when arranged in a reflector, as a vehicle headlight lamp. The lamp comprises an ionisable filling of  rare gas, mercury, and metal iodide, the quantity of mercury being dependent upon the inner diameter D of the lamp envelope (1), the distance d between the tips of the electrodes (2), and the distance l over which the electrodes project into the lamp envelope. The values of D, d, l and the wall thickness t of the lamp envelope lie within indicated limits. The lamp, which may be provided with a screen, may have a lamp cap or may be incorporated into a reflector with a front pane.
Patent CA-1244162-A (CA)
Inventor: BLANCHARD RANDALL D
IPC: G06F3/033
Filed: 1983-12-13
Granted: 1988-11-01
Abstract: Abstract A touch-sensitive overlay (20) for cooperative, optically proximate engagement with a visual display (22) of luminous character information (38) latently occupying one or more of a plurality of character locations (26) defined with a position-multiplexed coordinate array one from another, is comprised of a mask (44) of a photoreactive transducer (52) having at least one photoelectric parameter which varies as a function of incident light from the display of character information striking the transducer, and a signal circuit element (92) responsive to a vari-ation in the photoelectric parameter in communication with the mask for developing a characteristic logic pulse indicative of the position of one or more character locations within the array upon a touch thereof and the coincident presence of character information thereat (48).  In a highly preferred implementation, the visual display is a CRT display where the raster scan (24) and associated driving circuitry (96) provides the position-multiplexing of character locations and selective illumination there-of, while the photoreactive transducer is an open photovoltaic cell for developing a localized electric potential at luminous character locations, completed upon a manual touch by the operator at a selected location to develop an output voltage pulse indicative of the position(s) touched, which pulse is thence employed to interrogate registers (98) associated with the raster scan circuitry in order to provide spatial determination of the location(s) correspond-ing to the coincident presence of a touch and luminous character information thereat.
Patent CA-1213673-A (CA)
Inventor: AHAMED SYED V
IPC: H03M13/00
Filed: 1984-01-30
Granted: 1986-11-04
Abstract: BURST ERROR CORRECTION USING     CYCLIC BLOCK CODES            Abstract Methodology, and associated circuitry, for encoding and decoding data words to provide burst error correction capability are disclosed.        Encoder:  partitions the data words into a plurality of subrate streams; individually codes these streams utilizing a block coding technique; and then recollates the coded streams as well as the associated parity words in an interleaved order to produce the encoder output.        Decoder:  partitions the received words into a corresponding plurality of subrate received streams; individually computes the syndrome as well as shifted and divided versions of the syndrome for each recived stream; after each shift and divide, compares the partial remainder with the applicable code characteristic polynomial; and corrects the applicable bit in the corresponding received subrate stream whenever the comparison indicates an error has occured.
Patent CA-1237410-A (CA)
Inventor: URBAN ERNST-GUENTHER
IPC: B65H19/30
Filed: 1984-03-08
Granted: 1988-05-31
Abstract: ABSTRACT OF THE DISCLOSURE     Apparatus for rolling longitudinally divided webs of material, particularly paper, onto rolling cores installed alternately on opposite sides of a central supporting roller, has rolling cores rotatably supported on sliding supports and pressed against the outer surface of the supporting roller.  The number of rolling cores corresponds to the number of strips.  The device has means for removing the filled rolls and cutters to separate the web longitudi-nally and laterally.  The device is provided with a system for the automatic insertion of fresh roll cores and a system for the application of glue to the longitudinally separated web in the area of the cuts.  In addition, lateral separation blades that extend across the axial length of the support roller are provided.